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Finding the Fourth Proportional to 249,802.70, 344,719.13 and 142,407.32

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Solution

The fourth proportional to 249,802.70, 344,719.13 and 142,407.32 is: 196,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,802.70 : 344,719.13 = 142,407.32 : x
  2. Step 2: Convert to fraction form
    249,802.70/344,719.13 = 142,407.32/x
  3. Step 3: Cross multiply
    249,802.70x = 344,719.13 × 142,407.32
  4. Step 4: Simplify right side
    249,802.70x = 49,090,525,020.40
  5. Step 5: Solve for x
    x = 49,090,525,020.40/249,802.70
  6. Step 6: Final answer
    x = 196,517.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.